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Álvaro Antônio de Lacerda Rosário 2025-01-02 19:36:03 -03:00
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Física/1. Tópicos Fundamentais/Exercícios/Cinemática/Movimento uniforme e uniformemente variado.md
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@ -14,18 +14,15 @@
3. na viagem completa de ida e volta
7.1:
$\LARGE v_{m_{AB}} = \dfrac{56,3km/h + 88,5km/h}{2}$
$\LARGE v_{m_{AB}} = \dfrac{144,8km/h}{2} = 72,4km/h$
$\LARGE v_1 = 56,3km/h$
$\LARGE v_2 = 88,5km/h$
$\LARGE v_m = \dfrac{v_1 + v_2}{2}$
$\LARGE v_m = \dfrac{56,3km/h + 88,5km/h}{2}$
$\LARGE v_m = \dfrac{144,8km/h}{2} = 72,4km/h$
7.2
$\LARGE \begin{cases} \Delta S_1 = 56,3km/h \cdot t_1 \\ \Delta S_2 = 88,5km/h \cdot t_2 \\ \Delta S_1 = \Delta S_2 \\ \Delta S = \Delta S_1 + \Delta S_2\end{cases}$
$\LARGE 56,3km/h \cdot t_1 = 88,5km/h \cdot t_2$
$\LARGE 56,3km/h \cdot (88,5km/h)^{-1} = t_2 \cdot t^{-1}_1$
$\LARGE 56,3km/h \cdot t = \Delta S / 2$
$\LARGE 56,3km/h \cdot t = \Delta S / 2$